Air-supplying attachment for furnaces.



D. T. WILLIAMS.

AIR SUPPLYING ATTACHMENT FOR FURNACES. APPLICATION FILED JUNE 28. L913. 1L 18$ 43fi Patented Dec. 14, 1915.

3 SHEETS-SHEET I.

' avwamto'z 1X) i tmeooas dtfommgy COLUMBIA PLANOGRAPH CCL. WASHINGTON. D. c.

D. T. WILLIAMS. AIR SUPPLYING ATTACHMENT FOR FURNACES.

, APPLICATION FILED JUNE 28. I913. 1 1M 48? V Patented De0.14,1915.

3 SHEETS-SHEET 2.

COLUMBIA PLANOURIU'H C0.,\VASIHNGTON. u. c.

D. T. WILLIAMS. AIR SUPPLYING ATTACHMENT FOR FURNACES.

APPLICATION FILED IUNEZB. I913- L16A3W Patented Dec. 14, 1915.

3 SHEETS-SHEET 3.

2X) knew/co COLUMBIA PLANDURAPH co..wA5r1mnroN. 1:, c4

in;s i' e e.at ir egular re a tillllt lltllttl,

new]; r. WILLIAM-s, or remi sion, new JERSEY, assieuon, BY i/nasnn ASSIGN- MENTS, TO DAVID E. MARVEL, .JQSIAFQ MARV EL, AND JCSIAH 0. WDLCQTT, COJEART- NERS TRADING- UNDER THE FIRM-NAME Oli MARVEL, lvIAltVEL & WOLCOT'I.

AIB-SUJEPLYLING ATTMQHMENT r e UBNa-cns.

Specification bf Letterslfatent.

Patented Dee. M, i915.

Application filed June 28, 1913. Serial No. 776,232.

T 0 all whom it may concern Be it known that I, 'Davn) T. YV-ILLIAMS, a subject of the King of Great Britain, residing at Paterson, in the county of lassai-c and State of New Jersey, have invented certain new and useful Improvements in Air-Supplying Attachments for Furnaces, of which the following is a specification, reference being had therein to the accompanying dra wing.

This invention relates to air injecting attachments for furnaces and has for its object, the provision of a simple, inexpensive and efficient device of the character stated adapted to discharge air in a multitude of jets in divers directions into the combustion area of a furnace above the bed of fuel to agitate and thoroughly commingle the arising products of combustion with the air, to the end that substantially complete combustion may be obtained with correspondingly increased cfiiciency of the furnace, and the emission of smoke eliminated.

it is well recognized that in order to produce perfect combustion, it is necessary to supply a requisite volume of air or oxygen above the fire in order to transform the carhon-monoxid (CO) into carbon-dioxid (CO but supplementing the mere supply of the volume of air, it is obvious that the air must be thoroughly mixed with the gases arising from the fuel bed to afford a com.-

bustible mixture throughout and prevent the escape of unconsumed and combustible products arising or drawn off from the bed of fuel by the usual draft through the furnace. These c csirable characteristics are possessed by my improved attachment, as will be more fully explained. in the specific description hereinafter contained when read in Conn-ection with the accompanying drawings forming a part hereof, and wherein the preferred embodiment of the invention is illustrated.

The invention further has for its object, the furnishing of certain improvements detail of construction and arrangement of parts constituting characteristics of said pre ferred embodiment Q" the invention includ: g a m in upp y h mb r. a heai r; and a Series of on uits con ec ng r id rs t e h ating cham er b ng n ncled it a mult uleof i i0 sub stantially thlQllQJhout-the lengtl- 1 c charge the heated air in corresponding di.- rections throughout the combustion area of the furnace above the fuel, to agitate the combustible gases arising from the latter and effectively ,commingle therewith. Also, the provision of brackets for supporting the main supply and heating chambers connected together by means of the conduits constitilting the communicating passages between said chambers. These and subsidiary features will more fully hereinafter appear.

In the drawings;Figure 1 is a fragmentary longitudinal section through an ordinary locomotive fire box and boiler showing my attachment applied thereto; Fig. 2 is a vertical sectional view through Fig. 1; Fig. 8 is an enlarged cross sectional view of the attachment with its in'unediately associated parts; Fig. 4 is a horizontal section through the furnace looking down on the attachment,

and Fig. 5 is a vertical sectional view showviews, and first with reference to that form w of construction illustrated in the first four figures of the drawings, A represents the fire box of an ordinary locomotive furnace, B the door opening through which the fuel is fed to the fire box, and C, C the inner and outer boiler sheets respectively.

Disposed along the sides of the fire box on the inside of the same, in planes approxi mately that of the upper part of the door opening, are a pair of oppositely disposed combined air heating and discharge pipes D arranged longitudinally of the fire box and extending substantially throughout the length of the latter, these pipes being provided with multitude of jet orifices conveniently arranged in rows radially of the pipes (four rows being shown) adapted to d p ralle p n E l ne, th utside ftheifira be n laelnr e ting at sauna.

the transverse connecting pipes F. The opposite ends of the pipes F are threaded as at f to engage complementary threaded portions of similar brackets H hollowed out on the inner sides, as at h, to receive the turnedover ends 9 of the tubes G and bear against the boiler sheet as at h, or to bear against a hollow washer I adapted to overlie the end of the tube G, both clearly illustrated in Fig. 3. Each bracket is open at the top as at J for the ready insertion and removal of the supply and heating pipes D and E, and provided with curved seats K adapted to support said pipes with the openings (Z, 0 thereof preserved in registration with the open ends of the transverse connecting pipes F by means of bolts or pins L passing through lugs Z on the brackets and into openings or notches Z of the pipes D and E, as the case may be. At one end of the -a1r receiver or reservoir E, preferably at the end thereof nearer the door of the fire box, I provide an air blower or injector M adapted to forcibly introduce the air into the receiver and from the receiver through the communicating passages F to the heating chamber D.

As distinguished from the construction above described, the air reservoir or receiver represented at E, in Fig. 5, constitutes a preliminary heater by reason of its location also within the fire box A along the side thereof, it being observed that in this instance as well as in the instance previously defined, two attachments are employed, one at each side of the fire box. The receiver E in the present instance is connected to the combined heater and discharge pipe D by approximately vertically disposed connecting pipes F, independent brackets G being employed, in this instance, clamped in place to the boiler sheets by cap-nuts N engaging the outer threaded ends of supporting bolts n in lieu of the outer bracket H in the first described construction.

From the foregoing disclosure, it will be apparent that air forcibly supplied to the receiving and storage chamber within the pipe E or pipe IE will be quickly and uniformly fed to the combined heating and discharge pipe D or D through the medium of the many communicating passages between the receiver E or E and the pipe D or D, constituted by the connecting pipes therebe-=- tween, 1* or F, as the case may be, and the air highly heated and expanded in the pipe D or D,superheated in the embodiment of my invention illustrated in I 5,will be ejected horizontally across the fire box and downwardly and inwardly from opposite directions and at various angles toward the body of fuel within the combustion area to effectually agitate the products of combustion arising from the bed of fuel, and insure thorough commingling of the air with the gases and other combustible products, to enable consumption of the latter, resulting in the practically complete combustion of fuel, increased efiicicncy in operating results of the furnace, and the prevention of smoke, all as previously pointed out.

lVhile I have herein disclosed special embodiments of the invention desired to be protected herein, it will be apparent to persons skilled in the art that the invention is capable of embodiment in other devices and arrangements, as may be in keeping with the hereto appended claims.

I claim 1. In combination with the fire box of a furnace, an elongated air receiving chamber, a similar air heating and discharge chamber arranged along the inner side of the fire box adapted to emit air laterally into the combustion area above the bed of fuel, and a plurality of tubular members constituting communicating passages between the air receiving chamber and the combined air heating and discharge chamber, substantially as described, said tubular members bearing brackets on which one of the chambers is removably supported.

2. In combination with the fire box of a furnace, an elongated air receiving chamber, a similar air heating and discharge chamber arranged along the inner side of the fire box adapted to emit air laterally into the combustion area above the bed of fuel, and a plurality of tubular members constituting communicating passages between the air receiving chamber and the combined air heating and discharge chamber, the air receiving chamber being arainged along the outside of the fire box and the communicating passages extending through the wall of the fire box and said tubular members bearing brackets on which one of the chambers is reniovably supported.

3. In combination with the fire box of a furnace, an elongated air receiving chamber, a similar air heating and discharge chamber arranged along the inner side of the fire box adapted to emit air laterally into the combustion area above the bed of fuel, and a plurality of tubular members constituting communicating passages between the air receiving chamber and the combined air heatmeans? a multitude of discharge orifices to emit the air therefrom in divers directions to agitate and commin-gle with the combustible products arising from the bed of .fuel, and said tubular members bearing'br-ackets on which one of the chambers is removablysupported.

4. In combination with the fire box of a furnace, an elongated air receiving chamber, a similar air heating and discharge chamber arranged along the inner side .of the firebox adapted to emit air laterally into the combustion area above the bed of fuel, a plurality of communicating passages between the air receiving chamber and the combined air heating and discharge chamber, and detachable brackets carried by the attachment and constituting clamps for fastening the attachment to the fire box.

In combination with the fire box of a furnace, an elongated air receiving chamber, a similar air heating and discharge chamber arranged along the inner side of the fire box adapted to emit air laterally into the combustion area above the bed of fuel, a plurality of communicating passages between the air receiving chamber and the combined air heating and discharge chamber, and sep arate detachable brackets for supporting the air receiving and the air heating chambers in place, said brackets constituting opposing clamping members.

6. In combination with the fire box of a furnace, an elongated air receiving chamber, a similar air heating and discharge chamber arranged along the inner side of the fire box adapted to emit air laterally into the combustion area above the bed of fuel, a plurality of communicating passages between the air receiving chamber and the combined air heating and discharge chamber, separate detachable brackets for supporting the air receiving and the air heating chambers in place, and means on said brackets for preserving the chambers in registration With the communicating passages therebetween.

7. In combination with the fire box of a furnace, an elongated air receiving chamber, a similar air heating and discharge chamber arranged along the inner side of the fire box adapted to emit air laterally into the combustion area above the bed of fuel, a plurality of communicating passages between the air receiving chamber and the combined air heating and discharge chamber, separate detachable brackets for supporting the air receiving and the air heating chambers in place, and means on said brackets for preserving the chambers in registration with the communicating passages therebetween, said means comprising a projection on the bracket adapted to engage a recessed portion of the chamber members.

8. In combination with the fire box of a furnace, an elongated air receiving chamber, a similar air heating and discharge chamber arranged alongthe inner side of the fir-e box adapted to emit air laterally into the combustion area above the bed of fuel, and a plurality of communicating passages between the .air receiving chamber and the combined air heating and discharge chamber, the air receiving chamber :being arranged along the outside of the fire box and the communicating passages extending through the wall .of the *fire box, said communicating passages comprising pipes passing through the said wall registering with openings in the air receiving and airheating chambers, sleeves connecting the inner and outer boiler sheets through which said pipes pass, and means engaging the ends of the pipes over the sleeves to support the chambers in place.

9. In combination with the fire box of a furnace, an elongated air receiving chamher, a similar air heating and discharge chamber arranged along the inner side of the fire box adapted to emit air laterally into the combustion area above the bed of fuel, and a plurality of communicating passages between the air receiving chamber and the combined air heating and discharge chamber, the air receiving chamber being arranged along the outside of the fire box and the communicating passages extending through the wall of the fire box. said communicating passages comprising pipes passing through the said wall registering with openings in the air receiving and air heating chambers, in combination with brackets detachable relative to each other connected to said connecting pipes and having seats for the air receiving and air heating chambers.

10. In combination with the fire box of a furnace, an elongated air receiving chamber, a similar air heating and discharge cham er arranged along the inner side of the fire box adapted to emit air laterally into the combustion area above the bed of fuel, and a pluralitv of communicating passages between the air receiving chamber and the combined air heating and discharge chamber, the air receiving chamber being arranged along the outside of the fire box and the communicating passages extending through the wall of the fire box, said communicating passages com rising pines passing through the said wall registering with openings in the air receiving and air heating chambers. in combination with brackets detachable relative to each other connect-ed to said connecting pipes and having seats for the air receiving and air heating chambers. said brackets having open portions for the introduction of the chambers thereinto, and means for preventing disarrangement of the chambers.

11'. In combination with the fire box of a furnace. an elon ated air receiving chamber, a similar air heating and discharge chamber ranged along the outside of the fire boi and the communicating passages extending through the Wall of the fire box, said communicating passages comprising pipes passing through the said Wall registering With openings in the air receiving and air l1eating chambers, in combination With brackets detachable relative to each other connected to said connecting pipes and having seats for the air receivlng and air heating chambers, and sleeves passing through the inner and outer boiler sheets adapted to receive the communicating pipes therothrough, said sleeves being upset at one end over an adja cent boiler sheet and the adjacent b 'acket being provided with recessed body to accommodate said upset end.

In testimonv whereof I allix niv si nature 2 in presence of two witnesses.

DAVID T. YVILLIAMS. Vitnesses V. MAsoN ALLEN, PAUL W. TAYLOR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. C. 

